Separable headrest



June 26, 1923.

v e. w. SPAHR SEPARABLE HEADREST I Filed June 17, 1922 gwucnfoz Georye 1K Aka/E2 Patented June 26, T923.

U NTT S T GEORGE W. SPAHR, OF MECHANICSBURG, PENNSYLVANIA.

SEPARABLE HEADREST.

Application filed June 17, 1922. Serial No. 569,088.

To all whom it may concern:

Be it known that I GEORGE W. SPAHR, a citizen of the United citates, residing at Mechaniosburg, in the county of Cumberland and State of Pennsylvania, have invented certain new and useful Improvements in Separable Headrests; and I do hereby de clare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to head rests as used on barber's chairs and has for its object to provide a head rest which may be readily detached from the support or post at the back of the chair.

The various features of novelty will appear from the detailed description taken in connection with the accompanying drawing forming part of the specification, and in which- Figure 1 is a vertical section through the improved locking device, a fragmentary portion of the head rest being shown;

Fig. 2 is a section taken on line 2-2 of Fig. 1;

Fig. 3 is a section taken on line 3-3 of Fig. 1, and

Fig. 4. is a perspective view of the support which in the present instance is shown as a member adapted for securement to the conventional post.

Referring to the drawings, 10 indicates in a conventional way, the slidable bar or sup port which is movably mounted in the back of a barbers chair. On the top of this bar I have mounted an attachment 11. This attachment together with the bar may for convenience of description, be termed a post. The post is provided with a slot 12 and at the bottom of the slot on one face thereof, is a countersink 13 and the mouth of the slot at one side thereof is slightly beveled as at 14: for purposes that will presently appear. The top of this post is preferably pyramidal in form to facilitate coupling the same with a socket 15. This socket preferably constitutes an integral part of the cross piece 1:6 to which the frame 17 of the head rest is pivotally secured.

In order to releasably lock the socket to the post Tha-ve provided a novel form of locking means. 18 indicates a spring-pressed push pin which extends across the wallsof the socket. This pin-has an enlarged head 19 which is slidably mounted in one of the walls. The head 19 is adapted, when the socket is telescoped over the head, to venter the countersink 13. A spring 20 serves to maintain the push pin in locked position. The inner shoulder of the head 19 is normally maintained inwardly of the inner wall of the socket by the spring 20; when the socket is to be telescoped over the post the bevel on the post serves to move said shoulder into the plane of the socket wall whereupon the socket may be readily slipped down over the post and when the head is aligned with the countersink, it will snap into place as will be readily understood. The intermediate part of the post is adapted to enter into the slot as will be understood from the drawings.

The above described arrangement is a simple and efficient coupling means for the head rest and a locking means that can be manipulated with the thumb of the hand which grasps the head to lift it off the post. This is an important feature of the invention.

WVhat I claim is:

1. The combination of two separable members comprising a post and a socket, the post having a slot through its entire width and a countersink, means for releasably securing said members comprising a transversely extending push pin adapted to slide vertically and transversely through said slot, said pin having a head adapted to be partially seated in said countersink and in a depression in the adjacent wall of the socket.

2. The combination of two separable members comprising a post and a socket, the post having a transverse slot and a counten sink, means for releasably securing said members comprising a transversely extending push pin, said pin being adapted to slide vertically and transversely on entering the slot and having a head adapted to be partially seated in the countersink and in a depression in the adjacent wall of the socket.

8. The combination of two separable members comprising a post and a socket, the post having a slot and a countersink, means for releasably securing said members conr prising a transversely extending push pin, said pin having a head slidable in one of the walls of the socket, a portion of said head adapted to be seated in said countersink, and having a reduced portion extending post of a barbers chair. It is from said head through the other Wall of the socket, said reduced portion adapted to enter said slot.

4. In combination, a head, having a slot 5 therein and a countersink at the bottom of the slot, the mouth of the slot having an inward bevel as deep as the countersink, a socket adapted to receive said head, a spring-- pressed pin carried by said socket, the inter- 10 mediate portion of said pin adapted to be passed between the Walls of the slot, a head shoulder thereof at one extremity of the pin having a bearing in one of the Walls of the socket and the adapted When the post and socket are brought into initial coupling re- 15 lation, to ride on the bevel to be forced outwardly into the plane of the face of the post, said head adapted to enter the countersink to lock the post to the socket.

In testimony whereof I aflix my signature. 20

GEORGE W. SPAHR. 

